Permanent Disc NdFeB Magnet
MagnetMaterial: Neodymium(ndfeb)
50,8 x 50,8 x 25,4 mm
Weight 500 g
Nickel-plated

 Strength: approx. 100 Kg

We call this magnet THE DEATH MAGNET.
I have no idea what you could reasonably do with this magnet - it is simply too intense for most applications. Monitors, credit cards, video tapes - all down the drain. Tip: Always put a thick piece of cardboard underneath before attaching it to a metal surface, so you can slide it off sideways. Otherwise you'll never be able to get it off again. And if you have two of these together, not even Schwarzenegger will be able to separate them without any tools. My advice: Buy a smaller magnet! But if you think you really need this monster: BE CAREFUL!!! And please never, never allow children to play with DEATH MAGNETS

Permanent  Disc NdFeB Magnet mainly comprised of neodymium ,iron and boron,is the third generation of the rare-earth permanent magnets,Sintered Ndfeb is the strongest permanent magnets in the world up to date,It has excellent properties of high remanence,coercivity,and Max.energy product.

Permanent  Disc NdFeB Magnet grade:

N35,N38,N40,N42,N45,N48,N50,N52(Max.operational temperature: 80c)

N33SH,N35SH,N38SH,N40SH,N42SH(Max.operational temperature:150c)

N28UH,N30UH,N33UH,N35UH,N38UH(Max.operational temperature:up to 180c)

N28EH,N30EH,N33EH,N35EH(Max.operational temperature:up to 200c)

N30AH,N33AH,N35AH(Max.operational temperature:up to 230c)

Permanent  Disc NdFeB Magnet Outsanding product:

1)high performance:N52,N48M,48SH,42UH,38EH,33AH

2)high working temperature:the AH series with 40 k Oe super-high coervice force can replace SmCo magnets successfully.

3)high consistency:the cpk of Br and Hcj are much higher than 1.67 the consisitency of surface magnetic field and magnetic flux can be controlled with +/-1%

4)High Anti-corrosion:the sale spray test and humid heat test of the high anti-corrosion coating could be more than 1000 hours

5) low weight loss

PCT:130c ,humidity 100%,vapor pressure 2.7 bar.20 days,average low weight loss less than 2 mg/cm2

Permanent  Disc NdFeB Magnet  applications:

loudspeakers,motor assemblies,windmill,Home appliance,acousics,communication equipment,toy,car,servomotor,step motor,DC motor and linear motor,mircrophones

Pros: Very strong hold when contacting another magnet or plain iron, very difficult to pull away (easy to slide however).
Pretty strong hold between two of these even with a couple of mm in between.

Cons: Would like thicker (and more powerful) versions. Sure u can stack these together but sometimes it's not the same thing.

Other Thoughts: Good for attaching thick stacks of paper to refrigerators etc or pinching together papers or textiles.

Bottomline: This is the one if you need strong cost-effective magnets

you are welcome to enquiry on our Permanent  Disc NdFeB Magnet